11284909 has 2 divisors, whose sum is σ = 11284910. Its totient is φ = 11284908.

The previous prime is 11284907. The next prime is 11284921. The reversal of 11284909 is 90948211.

11284909 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10176100 + 1108809 = 3190^2 + 1053^2 .

It is a cyclic number.

It is not a de Polignac number, because 11284909 - 2¹ = 11284907 is a prime.

It is a super-2 number, since 2×11284909² = 254698342276562, which contains 22 as substring.

Together with 11284907, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11284907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5642454 + 5642455.

It is an arithmetic number, because the mean of its divisors is an integer number (5642455).

Almost surely, 2^11284909 is an apocalyptic number.

It is an amenable number.

11284909 is a deficient number, since it is larger than the sum of its proper divisors (1).

11284909 is an equidigital number, since it uses as much as digits as its factorization.

11284909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 11284909 is about 3359.3018619945. The cubic root of 11284909 is about 224.3017629916.

The spelling of 11284909 in words is "eleven million, two hundred eighty-four thousand, nine hundred nine".